well if your evil i hunted the ghostly orcs till about 17 then i moved on to dervishes an gaints but i dont know about the good side my only good character is only lvl 11
You may want to try and get a good little group for taking the scarecrow's by the Stepping tower in Antonica. I went from 17 to 19 in about 2 and a half hours. That is if no one comes and takes the camp with you.